Misskey

Misskey is an open-source, federated social media platform. People post short updates to a timeline, and because it speaks ActivityPub it can exchange content with other servers across the fediverse. Anyone can run their own instance, so communities are not tied to a single company's service.

The project is developed in TypeScript and is released under the AGPL-3.0 license. Its website, misskey-hub.net, collects documentation and information on the wider project. Production deployments commonly use Docker, and the maintainers credit services for error tracking, visual testing, code coverage and localization that help the interface reach many languages.

Misskey describes itself as free forever and welcomes support in the form of GitHub stars. Releases follow a year and month numbering scheme. It suits communities and individuals who want a federated alternative to centralized social networks and are comfortable operating a server or joining an existing instance.